B29C 57/08
Using pressure difference
Official title: using pressure difference
B29C57/08 (Using pressure difference) appears on 33 US grants and 12 published applications in this corpus.
Search patents in B29C- Granted patents
- 33
- Published applications
- 12
- Assignees
- 23
- Inventors
- 61
- Latest grant
- 20 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for expanding an end of a pipe and expander tool20 Dec 2022US 11,529,666 B2Uponor Innovation AB
- Chuck device23 Mar 2021US 10,953,476 B2Sanoh Industrial Co., Ltd.
- Joint restraint for molecularly oriented pipe and method of manufacture using a groove formed on a spigot23 Oct 2018US 10,107,425 B2S & B Technical Products, Inc.
- Belling machine for forming sockets on the ends of pipes made of thermoplastic material and method of forming a socket at the end of a pipe made of thermoplastic material26 Nov 2013US 8,591,217 B2Sica S.P.A.
- Belling machine for forming sockets on the ends of pipes made of thermoplastic material and method of forming a socket at the end of a pipe made of thermoplastic material26 Nov 2013US 8,591,789 B2Sica S.P.A.
- Method for expanding an end of a pipe and expander tool26 Mar 2020US 2020/0094306 A1Uponor Innovation AB
- Chuck device27 Feb 2020US 2020/0061719 A1Sanoh Industrial Co., Ltd.
- Process for manufacturing filler tube and filler tube25 Oct 2018US 2018/0304741 A1Sumitomo Riko Company Limited
- Joint Restraint for Molecularly Oriented Pipe and Method of Manufacture Using a Groove Formed on a Spigot25 Aug 2016US 2016/0245435 A1S & B Technical Products, Inc.
- Belling machine for forming sockets on the ends of pipes made of thermoplastic material and method of forming a socket at the end of a pipe made of thermoplastic material8 Nov 2012US 2012/0282365 A1Sica S.P.A.
Most cited
By later US patents
- Method for forming an annular groove in a thermoplastic pipe59US 4,107,249 ASekisui Kagaku Kogyo Kabushiki Kaisha · 1978
- Apparatus for producing composite extrusions35US 4,056,344 A1977
- Method of forming a bell end on thermoplastic pipe32US 4,113,829 APhilips Industries Inc. · 1978
- Method of forming a pipe of oriented thermoplastics polymeric material30US 4,428,900 AYorkshire Imperial Plastics Limited · 1984
- Method to form a bell end in a plastic pipe24US 4,134,949 AHarsco Corporation · 1979